Hello @Sanjay Jethva ,
First of all, thank you for your help.
As per your suggestion, I have checked my exception log file.
Exception log:
main.CRITICAL: ReflectionException: Class "Magento\Framework\App\PageCache\Identifier\Interceptor" does not exist in /var/www/magento/vendor/magento/framework/Code/Reader/ClassReader.php:34"
